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AM5728: Recommended PMIC

Bruce Carlson
Prodigy 70 points

Part Number: AM5728
Other Parts Discussed in Thread: TPS659037

Section A.20 of

"AM572x Industrial Development Kit (IDK) Evaluation Module (EVM) Hardware  User's Guide" at

says "TPS6590377 PMIC ... powers off the DDR supply at the wrong time. The default programming has been corrected in the TPS6590379 PMIC. "

But TPS6590379 seems to not exist.

Has this been corrected in TPS6590377 and '376?

Or what is the currently recommended PMIC to power the AM5728? 

  • 0
    TI__Guru**** 393215 points
    Section 8.1 of the AM572x Datasheet Rev. C states:

    TPS659037 is the Power Management IC (PMIC) that should be used for the Device designs. TI requires use of this PMIC for the following reasons:
    • TI has validated its use with the Device
    • Board level margins including transient response and output accuracy are analyzed and optimized for the entire system
    • Support for power sequencing requirements (refer to Section 5.9 Power Supply Sequences)
    • Support for Adaptive Voltage Scaling (AVS) Class 0 requirements, including TI provided software

    TPS659037 is offered in two versions, according to OTP values: TPS6590376 and TPS6590377.
    Whenever in doubt always follow the device datasheet, as the information there is regularly updated.
  • 0 in reply to Biser Gatchev-XID
    TI__Mastermind 26520 points
    Biser,
    in case you have not contacted the team yet, I will forward this to them, so they can update the IDK PDF.
  • 0 in reply to Biser Gatchev-XID
    TI__Genius 13567 points
    Hi Biser,
    The datasheet only claims to require the TPS650937 - it doesn't mention which programming version. But yes the TPS6590376 and TPS6590377 were previously recommended until a recent OTP change that is mentioned in the IDK User Guide.

    Hi Bruce,

    The new part numbers are as follows: TPS6590376 -> TPS6590378 and TPS6590377 -> TPS6590379. These are just updates to the PMIC programming code that are still undergoing production testing. The current model numbers are still supported until the new ones are available. At that point the old models will be NRND (not recommended for new designs). Samples are available however by contacting a TI sales rep.

    You are free to use the EVM with the current PMIC. By the time you reach production readiness just make sure you're using the new model numbers.